import React, { Component } from 'react'
import Clock from "./components/Clock"
import Login from "./components/Login"
import ShowList from "./components/ShowList"
import Calculator from "./components/Calculator"

export default function App() {
  return (
    <div>
      <h1>1.state/生命周期</h1>
      <Clock/>
      <h1>2.条件渲染</h1>
      <Login/>
      <h1>3.列表渲染</h1>
      <ShowList></ShowList>
      <h1>4.状态提升</h1>
      <Calculator></Calculator>
    </div>
  )
}